Second-stage labor duration in nulliparous women: relationship to maternal and perinatal outcomes.

Hdl Handle:
http://hdl.handle.net/10147/128406
Title:
Second-stage labor duration in nulliparous women: relationship to maternal and perinatal outcomes.
Authors:
Rouse, Dwight J; Weiner, Steven J; Bloom, Steven L; Varner, Michael W; Spong, Catherine Y; Ramin, Susan M; Caritis, Steve N; Peaceman, Alan M; Sorokin, Yoram; Sciscione, Anthony; Carpenter, Marshall W; Mercer, Brian M; Thorp, John M; Malone, Fergal D; Harper, Margaret; Iams, Jay D; Anderson, Garland D
Affiliation:
Department of Obstetrics and Gynecology, University of Alabama at Birmingham, Birmingham, AL, USA.
Citation:
Second-stage labor duration in nulliparous women: relationship to maternal and perinatal outcomes. 2009, 201 (4):357.e1-7 Am. J. Obstet. Gynecol.
Journal:
American journal of obstetrics and gynecology
Issue Date:
Oct-2009
URI:
http://hdl.handle.net/10147/128406
DOI:
10.1016/j.ajog.2009.08.003
PubMed ID:
19788967
Abstract:
The purpose of this study was to assess maternal and perinatal outcomes as a function of second-stage labor duration.; We assessed outcomes in nulliparous laboring women who were enrolled in a trial of fetal pulse oximetry.; Of 5341 participants, 4126 women reached the second stage of labor. As the duration of the second stage increased, spontaneous vaginal delivery rates declined, from 85% when the duration was <1 hour to 9% when it was > or =5 hours. Adverse maternal outcomes that were associated significantly with the duration of the second stage of labor included chorioamnionitis (overall rate, 3.9%), third- or fourth-degree perineal laceration (overall rate, 8.7%), and uterine atony (overall rate, 3.9%). Odds ratios for each additional hour of the second stage of labor ranged from 1.3-1.8. Among individual adverse neonatal outcomes, only admission to a neonatal intensive care unit was associated significantly with second stage duration (odds ratio, 1.4).; The second stage of labor does not need to be terminated for duration alone.
Item Type:
Article
Language:
en
MeSH:
Adult; Birth Injuries; Brachial Plexus; Female; Humans; Intensive Care Units, Neonatal; Labor Stage, Second; Parity; Pregnancy; Pregnancy Outcome; Risk Factors; Time Factors
ISSN:
1097-6868

Full metadata record

DC FieldValue Language
dc.contributor.authorRouse, Dwight Jen
dc.contributor.authorWeiner, Steven Jen
dc.contributor.authorBloom, Steven Len
dc.contributor.authorVarner, Michael Wen
dc.contributor.authorSpong, Catherine Yen
dc.contributor.authorRamin, Susan Men
dc.contributor.authorCaritis, Steve Nen
dc.contributor.authorPeaceman, Alan Men
dc.contributor.authorSorokin, Yoramen
dc.contributor.authorSciscione, Anthonyen
dc.contributor.authorCarpenter, Marshall Wen
dc.contributor.authorMercer, Brian Men
dc.contributor.authorThorp, John Men
dc.contributor.authorMalone, Fergal Den
dc.contributor.authorHarper, Margareten
dc.contributor.authorIams, Jay Den
dc.contributor.authorAnderson, Garland Den
dc.date.accessioned2011-04-19T15:45:21Z-
dc.date.available2011-04-19T15:45:21Z-
dc.date.issued2009-10-
dc.identifier.citationSecond-stage labor duration in nulliparous women: relationship to maternal and perinatal outcomes. 2009, 201 (4):357.e1-7 Am. J. Obstet. Gynecol.en
dc.identifier.issn1097-6868-
dc.identifier.pmid19788967-
dc.identifier.doi10.1016/j.ajog.2009.08.003-
dc.identifier.urihttp://hdl.handle.net/10147/128406-
dc.description.abstractThe purpose of this study was to assess maternal and perinatal outcomes as a function of second-stage labor duration.-
dc.description.abstractWe assessed outcomes in nulliparous laboring women who were enrolled in a trial of fetal pulse oximetry.-
dc.description.abstractOf 5341 participants, 4126 women reached the second stage of labor. As the duration of the second stage increased, spontaneous vaginal delivery rates declined, from 85% when the duration was <1 hour to 9% when it was > or =5 hours. Adverse maternal outcomes that were associated significantly with the duration of the second stage of labor included chorioamnionitis (overall rate, 3.9%), third- or fourth-degree perineal laceration (overall rate, 8.7%), and uterine atony (overall rate, 3.9%). Odds ratios for each additional hour of the second stage of labor ranged from 1.3-1.8. Among individual adverse neonatal outcomes, only admission to a neonatal intensive care unit was associated significantly with second stage duration (odds ratio, 1.4).-
dc.description.abstractThe second stage of labor does not need to be terminated for duration alone.-
dc.language.isoenen
dc.subject.meshAdult-
dc.subject.meshBirth Injuries-
dc.subject.meshBrachial Plexus-
dc.subject.meshFemale-
dc.subject.meshHumans-
dc.subject.meshIntensive Care Units, Neonatal-
dc.subject.meshLabor Stage, Second-
dc.subject.meshParity-
dc.subject.meshPregnancy-
dc.subject.meshPregnancy Outcome-
dc.subject.meshRisk Factors-
dc.subject.meshTime Factors-
dc.titleSecond-stage labor duration in nulliparous women: relationship to maternal and perinatal outcomes.en
dc.typeArticleen
dc.contributor.departmentDepartment of Obstetrics and Gynecology, University of Alabama at Birmingham, Birmingham, AL, USA.en
dc.identifier.journalAmerican journal of obstetrics and gynecologyen
dc.description.provinceLeinster-

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